S21 Exynos booting into a flashing/looping TWRP - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

Greetings,
New to XDA and looking for some feedback on issues run into when attempting to root a Samsung S21 G991B/DS Exynos. I unlocked the boot loader and attempted to flash twrp (twrp-3.5.0_10-1_afaneh92-R-o1s-1.tar) and Multidisabler (vbmeta_disabled_R.tar) in Odin and it passed and booted the phone into a looping or flashing TWPR screen. The phone is not allowing me power down the phone and I cannot get back into Odin, recovery, or download mode. I used the following instructions and got to step 9:
Root Samsung Galaxy S21 SM-G991B/N and Install TWRP Recovery 3.5.0
Easy tutorial to Root Samsung Galaxy S21 SM-G991B, SM-G991BN on Android 11 One UI 3.1. For rooting, you have to firstly flash TWRP Recovery 3.5.0.
www.androidweblog.com
Any feedback would be greatly appreciated. I would also be willing to consult and pay with anyone who can help me remedy this issue and get the phone rooted.
Thanks,
Todd

I dont know how to flash because i have the same problem ;/ but if u dont know how to fix this bootloop, text to me i can help you solve it

Related

Help Plz - Boot loop brick, Tab 3 7.0

Hello all,
I've got a Tab 3 7.0 T210R stuck on the Samsung logo with pulsing blue background. I've read through several Samsung boot loop help threads as well as the general Loop noob helper but haven't found a fix yet.
For my stuck T210R, What I've done & can do:
Was rooted with a "patched" stock UK ROM from last March [sorry, don't recall which]
Was running fine until after I tried to install from Play the TWRP Manager, I obviously did something bad! like select wrong device maybe
I can get into Philz, TWRP, & use Odin
I don't have a recovery back up [i really don't care about restoring back to anything - just want it to work, clean slate, ya know]
Tried a couple of latest ROM's through Philz and a stock ROM XAC-T210RUEAMK1-20131122134958.zip though ODIN. They seemed to be successful but I still can't get past Samsung logo
I've tried these ROMS that seem to load but ixna on successful boot afterwards:
ODIN: KIES_HOME_T210RUEAMK1_T210RXACAMK1_1304745_REV00_user_low_ship.tar.md5
Philz: Stock.rooted.deodexed.T210R.zip
Philz: TAB3-T210-HASSAN-ROM-V1.0-kitkat-4.4.2-Aroma-Mods-all Languages.zip
Philz: cm-10.1-20131209(1)-UNOFFICIAL-lt02wifiue.mine.zip
What's killing me is that loading new or stock ROM's SEEM to work - no errors or anything obviously indicative that I'll still be boot looping as soon as I restart. I'm quite desperate and thinking I'm truly bricked.
I haven't yet tried using ADB but if I can use ODIN and TWRP or Philz, will ADB do anything better than what I've already done? I haven't tried anything with the kernel as I can't really understand what to do there. I read and read and read the kernel threads but with my experience its really not as straight forward as rooting or flashing a ROM or software, and I could conceivably screw up worse! I'm mildly experienced at following guides to have rooted and ROM loaded a 1st gen Kindle Fire, Samsung SII skyrocket, S4, Tab 2 7.0, Tab 3 7.0.
No replies or interest? Please help
I'm I in the wrong forum? Did I offend someone? Could really use some input, please.
Any one seen this before? If you've any experience LOSING this battle, please speak up and I'll know to just resign to now owning a pretty white Samsung brick.
Boot to customed recovery under wipe choose format this will zero all partitions then redo
thanks!
andynroid said:
Boot to customed recovery under wipe choose format this will zero all partitions then redo
Click to expand...
Click to collapse
if i could find the "thanks" button I'd use it.
I'm traveling now but definitely try your solution. By "redo" I presume you mean load a ROM. When I wipe I also presume I'll still have custom recovery? I should still be able to ODIN, too, if needed?
thanks again
Yes exactly recovery will not go away once you have formatted the partitions you can now flash a new customed ROM or reflash original FW using Odin..Cheers
Hey buddy wanted to know if you ever found a solution for your issue? I am in the same bind you were in. Can you help guide me. I tried installing the same files you did and to no avail. I bought a Tab 3 T210R from eBay that was stuck in boot loop, I am assuming that it isn't rooted as when I would I went into download mode, it said the firmware was official.

[Q] Rooting Gt-P5200... Stuck on boot logo <_<

Morning All,
I am trying to root a friends GT-P5200 using Chainfires autoroot and I have hit a problem I have never encountered before. Whenever I flash the tar file everything passes, but the tablet does not get past the model code boot logo.
Has anyone experienced this issue? How do I get root working? I am trying to leave him with a stock recovery thats why I am looking at CF. But if I do have to flash a custom recovery I take it this is the thread to follow: http://forum.xda-developers.com/showthread.php?t=2531784 ?
Thanks for the help!
Same problem. Please help

galaxy note 2 gt n7100 says lost root access

Hi
my galaxy note 2 is stuck on the flashing SAMSUNG logo after recovering with TWRP, at the end of the recovery when everything is installed (data , files etc the phone gives me error message that "it seems root access lost and requests that I fix the issue. When I press enter on TWRP it reboots and gets to the Samsung logo and does not proceed. Initially I tried to flash a new ROM on the device and was no successful it was then I decided to recover to get to the previous system.
Do I have to flash the SuperUser again using Odin or is there another problem or missed something? I'm stuck and don't know how to get out of this predicament.
Your assistance in this regard will be much appreciated.
Thanks
Martin
Have you tried restoring with TWRP and, when prompted to root again, choosing no?
If you can't get out of the bootloop, you may be better off flashing back to stock with Odin and starting over.

Boot loop Samsung Galaxy S6 G920P

Hello everyone,
So I am very new to the concepts of rooting and custom roms, and I know I should have done some more research before I started. But now I have gotten myself into a bit of a pickle. I have the SM-G920P (Sprint) S6 and earlier this week I managed to root the phone and use TWRP to download and flash a custom rom. I used MD5: 7c1d34f7ab066104c924fb7a960b57d0 to install Renegade and then the phone booted just fine. I made the mistake afterwords when I let the phone reboot, but I had not turned on the option for OEM so now my phone is stuck in a boot that gives me a FRM lock because of the custom binary. It will not let me get into the andriod recovery (volume up, home, and power) but I can get to the download mode. I cannot seem to get any firmware to flash onto the device because I always get a fail after NAND write. Any help or direction from here would be great, Thanks.
dinomut101 said:
Hello everyone,
So I am very new to the concepts of rooting and custom roms, and I know I should have done some more research before I started. But now I have gotten myself into a bit of a pickle. I have the SM-G920P (Sprint) S6 and earlier this week I managed to root the phone and use TWRP to download and flash a custom rom. I used MD5: 7c1d34f7ab066104c924fb7a960b57d0 to install Renegade and then the phone booted just fine. I made the mistake afterwords when I let the phone reboot, but I had not turned on the option for OEM so now my phone is stuck in a boot that gives me a FRM lock because of the custom binary. It will not let me get into the andriod recovery (volume up, home, and power) but I can get to the download mode. I cannot seem to get any firmware to flash onto the device because I always get a fail after NAND write. Any help or direction from here would be great, Thanks.
Click to expand...
Click to collapse
Hi, we'll walk you through it.
First off, use the PF4 firmware from here: http://forum.xda-developers.com/spr...uide-links-files-update-root-restore-t3366862
Be sure to allow it to complete and it should reboot. If you continue to get NAND write errors you may need to try different ports on your PC or different cables.
Let us know when that completes for you.

Boot problem after flashing TWRP in my A50

Im flashing Twrp in my samsung A50 after installing it is stock on boot. and When trying to set ir in recovery mode it says'
"The phone is not running Samsung's official software. You may have problems with features or security and you won't be able to install software updates"
Ill try to resolve it by flashing firmware and it run well and when I tried to flash the Twrp again and same problem encounter..
It is just stock on that. Unable to go in recovery mode and as well as in system reboot.
May I know how can I fix this I want to root my A50. Please give me guide to properly root my A50 and resolve this.. I will truly appreciate your help on this. Many thanks
Cyruzen said:
Im flashing Twrp in my samsung A50 after installing it is stock on boot. and When trying to set ir in recovery mode it says'
"The phone is not running Samsung's official software. You may have problems with features or security and you won't be able to install software updates"
Ill try to resolve it by flashing firmware and it run well and when I tried to flash the Twrp again and same problem encounter..
It is just stock on that. Unable to go in recovery mode and as well as in system reboot.
May I know how can I fix this I want to root my A50. Please give me guide to properly root my A50 and resolve this.. I will truly appreciate your help on this. Many thanks
Click to expand...
Click to collapse
Here

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